Bereichsbild

Hydrogeochemie und Hydrogeologie

Dr. rer. nat. Gerhard SchmidtGerhard-schmidt 155x200px

Name: 

Gerhard Schmidt

Adresse:

Institut für Geowissenschaften

 

Ruprecht-Karls-Universität Heidelberg

 

Im Neuenheimer Feld 236, Raum 219

 

D-69120 Heidelberg

Telefon:
+49 (0) 6221-545250

E-Mail:

gerhard.schmidt@geow.uni-heidelberg.de

 

Ausbildung und beruflicher Werdegang:

1977

Mittlere Reife, Realschule

1980

Abitur, Martin-Luther-Schule, Kreis Bergstraße

1981 - 1982

Zivildienst, Verein für Behindertenhilfe

1982 - 1988

Studium: Geologie-Paläontologie, Universität Heidelberg

Diplomkartierung: Das Alter der Mylonitbildung im Bereich des Weschnitzdurchbruchs, Odenwald am Laboratorium für Geochronologie

Diplomarbeit: Haupt- und Spurenelementuntersuchungen an Metallaggregaten, Chondren und verschiedenen Korngrößenfraktionen des Chondriten Qingzhen (EH3) mit Hilfe der instrumentellen Neutronenaktivierungsanalyse (INAA) am Max-Planck-Institut für Kernphysik

1991

Promotion in Geologie, Universität Heidelberg

Dissertation: Der Nachweis extraterrestrischer Indikatorelemente (Platinmetalle, Re und Au) in Gesteinen des Impaktkraters Nördlinger Ries mit Hilfe einer Kombination aus Nickelsulfidextraktion und instrumenteller Neutronenaktivierungsanalyse am MPI für Kernphysik

1989 - 1991

Wiss. Ang., MPI für Kernphysik, Heidelberg

1991

Barringer Student Travel Award (USA)

1992 - 1993

Postdoctoral Fellow der University of California at Los Angeles (USA), Department of Earth and Space Sciences, NATO-Forschungsstipendium (Deutscher Akademischer Austauschdienst - DAAD)

1993 - 1997

Wiss. Ang., Institut für Kernchemie, Universität Mainz

1997

Postdoctoral Fellow, MPI für Chemie, Abt. Geochemie

1998

Wiss. Ang., Universität zu Köln, Institut für Mineralogie und Geochemie

1999

Erziehungszeit

1999 - 2003

Wiss. Ang., Universität zu Köln, Institut für Mineralogie und Geochemie

2003

Postdoctoral Fellow, MPI für Chemie

2004

Wiss. Ang., Institut für Kernchemie, Universität Mainz

2004

Postdoctoral Fellow, MPI für Chemie

2005

Postdoctoral Fellow, MPI für Chemie

2006 - 2010

Vertretungsunterricht an Gymnasien im Kreis Bergstraße, Hessen

2010 - 2013

Festanstellung an staatlich anerkanntem privaten Gymnasium

Unterrichtsfächer: Chemie, Erdkunde

2013 - 2015

Wiss. Ang., Universität Heidelberg, Institut für Geowissenschaften

 

Tätigkeitsfelder:

  • Geochemie (Spurenelementanalytik, Isotopengeochemie, Geochronologie)
  • Hydrochemie und Umweltchemie (Grund- und Thermalwasser, Feststoff-Wasser Wechselwirkungen, Fluide)
  • Angewandte Geochemie (z.B. Geothermie)
  • Kosmochemie (Platingruppenelementisotope, Meteoritenkrater, Meteorite)
  • Erdmantel und -kruste
  • Vulkanismus

Video documentation on volcanic ash from explosive eruptions of Icelandic volcanos affecting the atmosphere in southern Germany by the Heidelberger scientist Gerhard Schmidt

 

On April 14, 2010, when meltwaters from the Eyjafjallajökull glacier mixed with hot magma, an explosive eruption sent unusually fine-grained ash into the jet stream. The particles of explosive ash that reached Europe were especially sharp and abrasive over their entire size range, from submillimeter to tens of nanometers. In general, the assessment of the visual detectability of airborne volcanic ash is very complex because the detectability depends on many parameters, such as the brightness and the color contrast between the airborne volcanic ash and the background, illumination, particle size distribution and mass concentration, wavelength-dependent light scattering and absorption by the ash, and human perception (e.g. Weinzierl et al. 2012, Physics and Chemistry of the Earth, Vol. 45–46, Pages 87–102). However, on 19 April 2010 the ash cloud of the Icelandic volcano Eyjafjallajökull was clearly seen under clear-sky conditions by scattering of light near the horizon (early sunset) by Gerhard Schmidt from a mountain (Melibokus) about 30 km south of Frankfurt airport. The ash plume came from a north-westerly direction and covered the mountain road, named Bergstraße („strata montana“) south of the city of Darmstadt and north of Heidelberg. In the evening of 19 April 2010, a smell of sulfur is noticeable in the city of Bensheim about 40 km south of Frankfurt airport. Irritation of the mucous membranes was caused by the inhalation of the dust particles. Chemical fingerprints (characteristic major and trace element ratios, for example Sr/Zr, Sr/Rb, Zn/Cu, and elemental patterns) from sampled single ash particles from the Black Forest area have shown that at least 40% of the 2.5 and 10 µm size particles were of volcanic origin from the volcano eruption event (Schleicher et al. 2012, Atmospheric Environment 48, 113 - 121). The volcanic emissions of most concern are SO2, HF, sulphate (SO42-), CO2, HCl and H2S, although, there are other volcanic volatile species that may have human health implications, including mercury and other metals.

The Link to the video “Ground-based observations of the Eyjafjallajökull volcano ash plume over the northern upper Rhine Valley in Germany during air space closure in April 2010” can be found here:

https://filmfreeway.com/project/1306150 Externer Inhalt

 

Vortrags- und Publikationsverzeichnis:

Al Najem, S., Freundt, F. , Schmidt, G., Rheinberger, S., Kraml, M., Aeschbach, W., Isenbeck-Schröter, M. Salinization of shallow groundwater by a deep fluid ascending at the western main fault zone of the northern Upper Rhine Graben, Germany: Discussion of the origin and evolution using major and trace element compositions.- submitted to Applied Geochemistry

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Eichstädter, R., Aeschbach, W. Ascending deep fluids into shallow aquifer at hydraulically active segments of the Western Boundary Fault of the northern Upper Rhine Graben, Germany: Constraints from 87Sr/86Sr ratios. Procedia Earth and Planetary Science (2017), pp. 81-84 http://dx.doi.org/10.1016/j.proeps.2016.12.001

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Aeschbach, W. 87Sr/86Sr ratios in shallow and deep aquifers from the southern Upper Rhine Graben, Germany. Procedia Earth and Planetary Science (2017), pp. 626-629 http://dx.doi.org/10.1016/j.proeps.2016.12.168

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Aeschbach, W. 87Sr/86Sr ratios in thermal water from the southern Upper Rhine Graben, Germany. Procedia Earth and Planetary Science (2017). pp. 364-367 http://dx.doi.org/10.1016/j.proeps.2016.12.092

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Eichstädter, R., Aeschbach, W. 87Sr/86Sr ratios in shallow and deep aquifers and thermal water from the Eastern Boundary Fault of the northern Upper Rhine Graben at the Heidelberg Basin, Germany. Procedia Earth and Planetary Science (2017), pp. 108-111 http://dx.doi.org/10.1016/j.proeps.2016.12.017

Kraml, M., Jodocy, M., Reinecker, J., Leible, D., Freundt, F., Al Najem, S., Schmidt, G., Aeschbach, W., Isenbeck-Schröter, M. TRACE: Detection of Permeable Deep Reaching Fault Zone Sections in the Upper Rhine Graben, Germany, During Low Budget Isotope Geochemical Surface Exploration. European Geothermal Congress 2016, Paper Number: S-GC-98, Strasbourg, France https://www.geothermal-energy.org/pdf/IGAstandard/EGC/2016/EGC2016-S-GC-98.pdf

Isenbeck-Schröter, M., Aeschbach, W., Al Najem, S., Freundt, F., Schmidt, G. TRACE - TiefenReservoir-Analyse und Charakterisierung von der Erdoberfläche: Geochemisch-isotopisches Multimethoden-Konzept zur Charakterisierung tiefer Aquifere im Gebiet des Oberrheingrabens, Abschlussbericht TRACE Teil B. Technische Informationsbibliothek Hannover (2016) 95 S. DOI: 10.2314/GBV:871282461

Schmidt, G. Are high-temperature fractionations in the solar nebula preserved in highly siderophile element systematics of the Earth mantle? Meteoritics and Planetary Science 39, (2004) 1995-2007. http://onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.2004.tb00092.x/abstract

Schmidt, G., Witt-Eickschen, G., Palme, H., Seck, H., Spettel, B., Kratz, K.-L. Highly siderophile elements (PGE, Re and Au) in mantle xenoliths from the West Eifel volcanic field (Germany). Chemical Geology 196, (2003) 77-105. http://www.sciencedirect.com/science/article/pii/S0009254102004084

Schmidt, G., Snow, J. Os isotopes in mantle xenoliths from the Eifel volcanic field and the Vogelsberg (Germany): age constraints on the lithospheric mantle. Contributions to Mineralogy and Petrology 143, (2002) 694-705. http://link.springer.com/article/10.1007%2Fs00410-002-0372-7

Snow, J.E., Schmidt, G., Rampone, E. Os isotopes and highly siderophile elements (HSE) in the Ligurian ophiolites, Italy. Earth and Planetary Science Letters 175, (2000) 119-132. http://www.sciencedirect.com/science/article/pii/S0012821X99002800

Lorand, J.P., Schmidt, G., Palme, H., Kratz, K.-L. Highly siderophile element geochemistry of the Earth`s mantle: new data for the Lanzo (Italy) and Ronda (Spain) orogenic peridotite bodies. Lithos 53, (2000) 149-164. http://www.sciencedirect.com/science/article/pii/S0024493700000177

Schmidt, G., Palme, H., Kratz, K.-L., Kurat G. Are highly siderophile elements (PGE, Re and Au) fractionated in the upper mantle of the earth? New results on peridotites from Zabargad. Chemical Geology 163, (2000) 167-188. http://www.kurat.at/pdf/346.pdf http://www.sciencedirect.com/science/article/pii/S0009254199001369

Snow, J.E., Schmidt G. Proterozoic melting in the northern peridotite Massif Zabargad Island: Os isotopic evidence. Terra Nova 11, (1999) 45-50. http://www.mpic.mpg.de/Publikationen?seite=149 http://onlinelibrary.wiley.com/doi/10.1046/j.1365-3121.1999.00223.x/abstract

Snow, J.E., Schmidt, G. Constraints on the Earth accretion deduced from noble metals in the oceanic mantle. Nature 391, (1998) 166-169. http://www.nature.com/nature/journal/v391/n6663/full/391166a0.html

Schmidt, G., Palme, H., Kratz, K.-L. Highly siderophile elements (Re, Os, Ir, Ru, Rh, Pd, Au) in impact melts from three European craters (Sääksjärvi, Mien and Dellen): clues to the nature of the impacting bodies. Geochimica et Cosmochimica Acta 61, (1997) 2977-2987. http://www.sciencedirect.com/science/article/pii/S0016703797001294

Schmidt, G. Clues to the nature of the impacting bodies from platinum-group elements (rhenium and gold) in borehole samples from the Clearwater East crater (Canada) and the Boltysh impact crater (Ukraine). Meteoritics and Planetary Science 32, (1997) 761-767. http://onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.1997.tb01566.x/abstract

Heinrich, E., Schmidt, G., Kratz, K.-L. Determination of Platinum-Group Elements (PGE) from Catalytic Converters in Soil by Means of Docimasy and INAA. Analytical and Bioanalytical Chemistry 354 (bis Dezember 2001 Fresenius Z. Anal. Chem.) (1996) 883-885. http://link.springer.com/article/10.1007/s0021663540883

Schmidt, G., Pernicka, E. The determination of platinum group elements (PGE) in target rocks and fall-back material of the Nördlinger Ries impact crater (Germany). Geochim. Cosmochim. Acta 58 (1994) 5083-5090. http://www.sciencedirect.com/science/article/pii/001670379490233X

Schmidt, G., Zhou, L., Wasson, J. T. Iridium anomaly associated with the Australasian tektite-producing impact: Masses of the impactor and of the Australasian tektites. Geochim. Cosmochim. Acta 57 (1993) 4851-4859. http://www.sciencedirect.com/science/article/pii/001670379390204A

Hess, J.C., Schmidt, G. Zur Altersstellung der Kataklasite im Bereich der Otzberg-Zone, Odenwald. Geol. Jb. Hessen, Wiesbaden (1989) 117, 69-77. http://www10.hlug.de/fileadmin/shop/pics/schriften/Schriften_Geologie_137.pdf

 

Conference Paper and Talks

 

Schmidt, G. Ascending deep fluids into shallow aquifer at hydraulically active segments of the Western Boundary Fault of the Rhine Graben, Germany. Vortrag am Department of Mining Engineering, GIS-Remote Sensing, Sahid Bahonar University of Kerman (SBUK), Iran. – oral presentation 13.05.2017

Schmidt, G. Impact crater in Europe. Vortrag am Department of Mining Engineering, GIS-Remote Sensing, Sahid Bahonar University of Kerman (SBUK), Iran. – oral presentation 13.05.2017.

Kraml, M., Jodocy, M., Freundt, F., Schmidt, G., Al Najem, S., Reinecker, J., Kreuter, H., Aeschbach, W., Isenbeck-Schröter, M. Ergebnisse des Forschungsprojekts TRACE zur Senkung des Fündigkeitsrisikos. Geothermie Kongress 2016, 29. Nov. - 01. Dez., Essen, Vortrag zum Thema „Verminderung des Fündigkeitsrisikos“ am 30.11.2016 http://www.geothermie.de/aktuelles/der-geothermiekongress-2016.html

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Eichstädter, R., Aeschbach, W. Ascending deep fluids into shallow aquifer at hydraulically active segments of the Western Boundary Fault of the northern Upper Rhine Graben, Germany: Constraints from 87Sr/86Sr ratios. 15th Water-Rock Interaction International Symposium, WRI-15, 16 to 21 October 2016, Évora, Portugal. – oral presentation 20.10.2016, http://wri15portugal.org/

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Aeschbach, W. 87Sr/86Sr ratios in shallow and deep aquifers from the southern Upper Rhine Graben, Germany. 15th Water-Rock Interaction International Symposium, WRI-15, 16 to 21 October 2016, Évora, Portugal. – E-Poster presentation 20.10.2016

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Aeschbach, W. 87Sr/86Sr ratios in thermal water from the southern Upper Rhine Graben, Germany. 15th Water-Rock Interaction International Symposium, WRI-15, 16 to 21 October 2016, Évora, Portugal. – E-Poster presentation 20.10.2016

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Kraml, M., Eichstädter, R., Aeschbach, W. 87Sr/86Sr ratios in shallow and deep aquifers and thermal water from the Eastern Boundary Fault of the northern Upper Rhine Graben at the Heidelberg Basin, Germany. 15th Water-Rock Interaction International Symposium, WRI-15, 16 to 21 October 2016, Évora, Portugal. – E-Poster presentation 20.10.2016

Kraml, M., Jodocy, M., Reinecker, J., Leible, D., Freundt, F., Al Najem, S., Schmidt, G., Aeschbach-Hertig, W., Isenbeck-Schröter, M. TRACE: Detection of permeable sections of deep reaching fault zones using a low budget isotope-geochemical surface exploration method in the Upper Rhine Graben, Germany. European Geothermal Congress, 19-24 Sept 2016, Strasbourg, France (2016). (Vortrag 20. Sept. 2016) http://europeangeothermalcongress.eu/agenda/list-of-papers/

Freundt, F., Al Najem, S., Aeschbach-Hertig, W., Isenbeck-Schröter, M., Schmidt, G., Kraml, M., Geothermal exploration using He isotopes in shallow aquifers of the Upper Rhine Graben. In 7th German-Brazilian Symposium, Heidelberg, Oktober 04 - 10. 2015. (Vortrag) http://www.geow.uni-heidelberg.de/md/chemgeo/geow/tagung/SBA-DBS/abstract-book_sba-dbs.pdf

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Aeschbach-Hertig, W., Kraml, M., 87Sr/86Sr systematics and Li of shallow groundwaters and springs at the western main fault of the northern Upper Rhine Graben. 25th Annual V. M. Goldschmidt Conference, Prag, August 16 - 21. 2015. http://goldschmidt.info/2015/uploads/abstracts/origPDFs/3367.pdf (Vortrag)

Freundt, F., Al Najem, S., Aeschbach-Hertig, W., Isenbeck-Schröter, M., Schmidt, G., Kraml, M., Application of helium isotopes in shallow groundwater for geothermal exploration in the Upper Rhine Graben. 25th Annual V. M. Goldschmidt Conference, Prag, August 16 - 21. 2015. http://goldschmidt.info/2015/uploads/abstracts/origPDFs/2109.pdf (Poster)

Schmidt, G., Al Najem, S., Isenbeck-Schröter, H.-M. Seitz, N. Gaspers, M., Freundt, F., Aeschbach-Hertig, W., Kraml, M., Hochfraktionierte Lithium-Isotopenverhältnisse (negative δ7Li-Werte) in Grundwässern und Mineralquellen der westlichen Grabenrandstörungszone des nördlichen Oberrheingrabens. Forschungsseminar Universität Heidelberg, 5. Mai 2015 (Vortrag) http://www.geow.uni-heidelberg.de/veranstaltungen/forschungsseminar.html

Freundt, F., Al Najem, S., Schmidt, G., Aeschbach-Hertig, W., Isenbeck-Schröter, M., Kraml, M. The role of shallow ground water 3He/4He ratios in geothermal energy potential and fault zone characterization. Frühjahrstagung der Deutschen Physikalischen Gesellschaft e. V., Heidelberg 2015, 23.-27. März 2015. http://www.dpg-verhandlungen.de/year/2015/conference/heidelberg/part/up/session/10/contribution/1

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Aeschbach-Hertig, W., Kraml, M., Grobe, R., 87Sr/86Sr-Isotopenverhältnisse und Spurenelemente in Grundwässern des nördlichen Oberrheingraben. Institut für Umweltphysik, Universität Heidelberg. 27.10.2014 (Vortrag)

Kraml, M., Freundt, F., Schmidt, G., Al Najem, S., Aeschbach-Hertig, W., Isenbeck-Schröter, M., Grobe, R., Trace – Tiefenreservoir Analyse und Charakterisierung von der Erdoberfläche – Forschungsprojekt zur Detektion von permeablen tiefreichenden Störungszonen im Oberrheingraben. 9. Tiefengeothermie-Forum am 30. September 2014 an der Technischen Universität Darmstadt http://hessenenergie.de/Downloads/Dl-Nach/dln-tgf/tgf-14/tgf-14-pdfs/05_Kraml_140930.pdf

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Aeschbach-Hertig, W., Grobe, R., Kraml, M., 2014. Detection of ascending fluids in shallow groundwater at the western marginal fault of the northern Upper Rhine Graben, Germany: Constraints from 87Sr/86Sr isotopic ratios and trace elements. Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften, Heft 85, S. 559 – 560. GeoFrankfurt 2014, Goethe Universität Frankfurt a.M., 21.-24. September 2014 (Vortrag)

Freundt, F., Al Najem, S., Aeschbach-Hertig, W., Isenbeck-Schröter, M., Schmidt, G., Grobe, R., Kraml, M., A multi-tracer approach for the exploration of deep geothermal energy potential and fault zone characterisation, applied in the Upper Rhine Graben. Geophysical Research Abstracts, Vol. 16, EGU2014-13059, 2014, EGU General Assembly 2014 http://meetingorganizer.copernicus.org/EGU2014/EGU2014-13059.pdf

Schmidt, G., Al Najem, S., Isenbeck-Schröter, M., Freundt, F., Aeschbach-Hertig, W., Kraml, M., Grobe, R., 87Sr/86Sr-Isotopenverhältnisse in Grundwässern des nördlichen Oberrheingraben, Workshop TRACE –TiefenReservoir-Analyse und Charakterisierung von der Erdoberfläche, FKZ: 0325390, Institut für Geowissenschaften, Universität Heidelberg, 23.05.2014 (Vortrag)

Schmidt, G., Impact crater in Europe. Paneth-Kolloquium 2010, October 2010, Nördlingen http://www.paneth.eu/PanethKolloquium/Archive_files/PanethKolloquium_2010.pdf

Schmidt, G., Impact as a geological process in the context of solar system and planetary evolution. European Planetary Science Congress 2010, Pontifical University of Saint Thomas Aquinas 19 – 24 September 2010, Rome http://meetingorganizer.copernicus.org/EPSC2010/EPSC2010-164-1.pdf

Schmidt, G., Formation of terrestrial planets. The 20th General Meeting of the International Mineralogical Association 2010, Budapest.

Schmidt, G., Nature of Earth. 73rd Annual Meeting of the Meteoritical Society, 2010, New York, #5022, A182. http://www.lpi.usra.edu/meetings/metsoc2010/pdf/5022.pdf http://onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.2010.01051.x/pdf

Schmidt, G., Kratz, K.-L. Impact cratering as a major process in the evolution of planetary surfaces: Projectile identification of meteorite craters. Eos Trans. American Geophysical Union, 90(52), Fall Meet. Suppl., Abstract, 2009, San Francisco. http://adsabs.harvard.edu/abs/2009AGUFMMR13B1679S

Schmidt, G. Refractory Element Fractionation (Os/Ir, Rh/Ir, Ru/Os) in Impact Craters: Projectile Identification of Rochechouart, Sääksjärvi, Boltysh, Dellen, Mien, etc. 72th Annual Meeting of the Meteoritical Society, Nancy, 2009. http://www.lpi.usra.edu/meetings/metsoc2009/pdf/5001.pdf

Schmidt, G. Schmuck aus dem Kosmos? Herkunftsbestimmung von Metallen. Starkenburgsternwarte Heppenheim, 10.03.2009

Schmidt, G. Planet Formation in the Inner Solar System: Origin and Nature of Impacting Projectiles. Workshop on Planet Formation and Evolution: The Solar System and Extra Solar Planets, Tübingen, 2nd to 6th March 2009. http://www.tat.physik.uni-tuebingen.de/~fgp/Conf09/programme.html

Schmidt, G. The nature of impacting projectiles on Earth, Moon and Mars. Paneth-Kolloquium, Nördlingen, 30.-31. Okt. 2008. http://www.cosmochemistry.org http://www.paneth.eu/PanethKolloquium/Archive_files/PanethKolloquium_2008.pdf

Schmidt G. The influence of impactors on the chemical composition of Earth and Mars. European Planetary Science Congress, Münster, Vol. 3, EPSC2008-A-0054, Sept. 21– Sept. 26, 2008. http://www.europlanet-eu.org

Schmidt, G. The influence of impactors on the chemical composition of Earth and Mars. 71th Annual Meeting of the Meteoritical Society, Matsue, Japan, July 27– August 1, 2008. http://www.lpi.usra.edu/meetings/metsoc2008/pdf/5001.pdf

Schmidt, G. Chemischer Spurennachweis von Asteroideneinschlägen: Forschungsergebnisse von Mond, Mars und Erde. Starkenburgsternwarte Heppenheim, 16.10.2007

Schmidt, G. Influence of impactors on the chemical composition of the Earth. In 17th Annual V. M. Goldschmidt Conference, Cologne, Germany, A896, August 19 - 24, 2007. http://goldschmidt.info/2007/abstract_volume.pdf

Schmidt, G. Highly siderophile elements in Earth and Mars. In Meteoritics and Planetary Science, Tucson (Arizona), USA, August 13–17, 2007. http://www.lpi.usra.edu/meetings/metsoc2007/pdf/5001.pdf

Schmidt, G. Comparison of highly siderophile elements between Earth and Mars. In Seventh International Conference on Mars, Pasadena, California Institute of Technology (Caltech), USA, July 9–13, #3020, 2007. http://www.lpi.usra.edu/meetings/7thmars2007/pdf/3020.pdf

Schmidt, G. Kosmische Bomben: Kollisionen in unserem Sonnensystem und deren chemischer Spurennachweis. Martin-Luther-Gymnasium Rimbach, MLS-Forum, 13.06.2007

Schmidt, G. Estimated mass of iron meteorites contributing to highly siderophile element and Ni inventory of the Earth crust. Lunar and Planet. Sci. Conf. XXXVIII, 1214-1215, 2007. http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1214.pdf

Schmidt, G. Estimated mass of iron meteorites in the Earth upper continental crust. In 21. Seminar Aktivierungsanalyse und Gammaspektroskopie (SAAGAS 21), Mainz, 21-23 März 2007. http://www.kernchemie.uni-mainz.de/eng/460.php

Schmidt, G. Are there Cosmochemical Fingerprints in the Earth Upper Crust? Eos Trans. AGU 87(52), Fall Meet. Suppl., Abstract V33A-0641, 2006. http://adsabs.harvard.edu/abs/2006AGUFM.V33A0641S

Schmidt, G. Kosmochemische „Fingerabdrücke“ in Gesteinen: Neutronenaktivierungsanalysen zur Herkunftsbestimmung der seltenen Elemente Os, Ir, Ru, Pt, Rh und Pd. Seminarvortrag am Institut für Radiochemie (RCM), Technische Universität München (TUM), Garching, 24.10.2006.

Schmidt, G. Processing of the Earth’s Upper Continental Crust by Impacts of Magmatic Iron Meteorites and/or Pallasites: Evidence from HSE and Ni? In Workshop on Early Planetary Differentiation, p. 89-90. LPI Contribution No. 1335, Lunar and Planetary Institute, Houston, 2006. http://www.lpi.usra.edu/meetings/epd2006/pdf/4027.pdf

Schmidt, G. Os, Ir, Ru, Pt, Rh, and Pd in Earth’s crust, mantle and moon. In 16th Annual V. M. Goldschmidt Conference, Melbourne, Australia, A563, 27. Aug. -1. Sept. 2006. http://goldschmidt.info/2006/s3-03.html http://goldschmidt.info/2006/pdf/0608025_schmidt01106.pdf

Schmidt, G. Comparison of HSE in Earth and Moon. Meteoritics and Planetary Science Conference, ETH Zürich, 06. -11. Aug. 2006, Abstract #5023. http://www.lpi.usra.edu/meetings/metsoc2006/pdf/5023.pdf

Schmidt, G. Neutron activation of Os, Ir, Ru, Pt, Rh, and Pd in planetary materials. In Neutrons for Geoscience, Technische Universität München, Forschungsneutronenquelle Heinz Maier Leibnitz (FRM II), Garching 14. July 2006. (Vortrag) http://www.frm2.tum.de/fileadmin/w00bnv/www/_migrated_content_uploads/Geoscience_FRM-II_14.07.2006.pdf

Schmidt, G., Palme H., Kratz K.-L. Chemical evidence for a post-accretionary bombardement on Earth? Paneth-Kolloquium, Nördlingen, 12.-14. Okt. 2005. http://www.uni-koeln.de/math-nat-fak/mineral/kosmo/PC2005.pdf

Schmidt, G., Palme H., Kratz K.-L. Evidence of a magmatic crystallisation process in the Earth's upper continental crust? Berichte der Deutschen Mineralogischen Gesellschaft, Beih. z. Eur. J. Mineral. Vol. 17, No. 1, 119 (2005). https://www.schweizerbart.de/publications/detail/artno/147011721/Berichte_d_Deutschen_Mineral_Gesellsch

Schmidt G., Palme H., Kratz K.-L. Chemical Evidence of Asteroidal Fragments (Iron Meteorites and/or Pallasites) in the Earth's Upper Continental Crust? Meteoritics and Planetary Science 40, No. 9, Supplement, A135 (2005). http://www.lpi.usra.edu/meetings/metsoc2005/pdf/5015.pdf

Schmidt, G., Kratz K.-L. Kosmochemische Fingerabdrücke im Erdmantel: Ein Beitrag zur Herkunft der chemischen Elemente Os Ir, Ru, Pt, Rh, und Pd. Inst. f. Kernchemie, Jahresbericht (2004), ISSN 0932-7622 (2005). http://www.kernchemie.uni-mainz.de/downloads/jb2004/a21.pdf

Schmidt, G., Kratz K.-L. High-temperature fractionations in the solar nebula. Inst. f. Kernchemie, Jahresbericht (2004), ISSN 0932-7622 (2005). http://www.kernchemie.uni-mainz.de/downloads/jb2004/a20.pdf

Schmidt, G., Kratz K.-L. Cosmochemical fractionations and/or Astrophysical Effects in Planetary Materials. In Workshop on Chondrites and the Protoplanetary Disk. Abstract #9018, LPI Contribution, (2004). http://www.lpi.usra.edu/meetings/chondrites2004/pdf/9017.pdf

Schmidt, G. Highly fractionated materials from the Inner Solar System: Evidence from the Earth. In Workshop on Chondrites and the Protoplanetary Disk. Abstract #9018, LPI Contribution, (2004). http://www.lpi.usra.edu/meetings/chondrites2004/pdf/9018.pdf

Schmidt, G. Comparison of highly siderophile element data in Earth’s upper mantle derived by different analytical methods. Inst. f. Kernchemie, Jahresbericht (2003), ISSN 0932-7622 (2004). http://www.kernchemie.uni-mainz.de/downloads/jb2003/a22.pdf

Schmidt, G., Spettel B., Palme H., Kratz K.-L. Haupt- und Spurenelemente von Mantelgesteinsauswürflingen aus der West-Eifel. Inst. f. Kernchemie, Jahresbericht (2003), ISSN 0932-7622 (2004). http://www.kernchemie.uni-mainz.de/downloads/jb2003/a21.pdf

Schmidt, G., Palme H., Kratz K.-L., Spettel B., Nachweis von Os, Ir, Ru, Rh, Pt, Pd, Re und Au in Harzburgit- und Lherzolith-Xenolithen. Inst. f. Kernchemie, Jahresbericht (2003), ISSN 0932-7622 (2004). http://www.kernchemie.uni-mainz.de/downloads/jb2003/a20.pdf

Schmidt, G., Spettel B., Palme H., Kratz K.-L. Experimente zur Messung von As und Sb im unteren ng/g-Bereich in Mantelgesteinen. Inst. f. Kernchemie, Jahresbericht (2003), ISSN 0932-7622 (2004). http://www.kernchemie.uni-mainz.de/downloads/jb2003/a19.pdf

Schmidt, G. Abundances of Re, Os, Ir, Ru, Rh, Pt, Pd and Au in Earth's primitive upper mantle. Berichte der Deutschen Mineralogischen Gesellschaft, Beih. z. Eur. J. Mineral. Vol. 15, No. 1, 177 (2003). https://www.schweizerbart.de/publications/detail/artno/147011521/Berichte_d_Deutschen_Mineral_Gesellsch

Schmidt, G. High-temperature fractionations in the solar nebular preserved in highly siderophile element systematics of the Earth mantle. Workshop on Cometary Dust in Astrophysics. Abstract #6029, LPI Contribution No. 1182, 67 (2003). http://www.lpi.usra.edu/meetings/stardust2003/

Schmidt, G. Composition of the late influx of the Earth. In Third International Conference on Large Meteorite Impacts. Abstract #4006, Lunar and Planetary Institute, Houston (CD-ROM) (2003). http://www.lpi.usra.edu/meetings/largeimpacts2003/pdf/4006.pdf

Schmidt, G. Composition of the late influx of the Earth. Meteoritics and Planetary Science 38, Nr 7, Supplement, A18 (2003). http://www.lpi.usra.edu/meetings/metsoc2003/pdf/5009.pdf

Schmidt, G., Spettel B., Palme H. Arsenic and Sb abundances in the Earth mantle. In Lunar and Planet. Sci. XXXIV, Abstract #1581, Lunar and Planetary Institute, Houston (CD-ROM), (2003). http://www.mpic.mpg.de/3625125/Publications?page=188

Schmidt, G., Spettel B., Palme H., Kratz K.-L. Geochemistry of As and Sb: Constraints on fluid metasomatism in mantle xenoliths. Inst. f. Kernchemie, Jahresbericht (2002), ISSN 0932-7622 (2003). http://www.kernchemie.uni-mainz.de/downloads/jb2002/a23.pdf

Schmidt, G., Highly siderophile elements in Earth’s upper mantle: Composition of the late influx. Inst. f. Kernchemie, Jahresbericht (2002), ISSN 0932-7622 (2003). http://www.kernchemie.uni-mainz.de/downloads/jb2002/a22.pdf

Schmidt, G., Witt-Eickschen G., Palme H., Seck H., Snow J., Spettel B., Kratz K.-L. Redistribution of Platinum Group Elements in mantle xenoliths from the Eifel. Inst. f. Kernchemie, Jahresbericht (2002), ISSN 0932-7622 (2003). http://www.kernchemie.uni-mainz.de/downloads/jb2002/a24.pdf

Schmidt, G., Snow J., Witt-Eickschen G., Palme H., Seck H., Spettel B., Hofmann A.W., Kratz K.-L. Mantle xenoliths from the West Eifel volcanic field and Vogelsberg volcano (Germany) - Behaviour of HSE during mantle metasomatism and age constraints on lithospheric mantle In Highly siderophile elements in terrestrial and meteoritic samples: implications for planetary differentiation and igneous processes, WORKSHOP, Nancy, August 26 - 28 (2002) 58. http://www.crpg.cnrs-nancy.fr/NEWS/HSE-2002/program-gb.html

Schmidt, G., Palme H., Kurat G., Kratz K.-L. Melt percolation in mantle xenoliths from Lanzarote (Eastern Canary Islands): Evidence from highly siderophile elements. Inst. f. Kernchemie, Jahresbericht (2001), ISSN 0932-7622 (2002). http://www.kernchemie.uni-mainz.de/downloads/jb2001/a19.pdf

Schmidt, G., Spettel B., Palme H., Kratz K.-L. HSE abundances in mantle xenoliths from the Eifel volcanic field: Constraints on melt-rock reaction. Inst. f. Kernchemie, Jahresbericht (2001), ISSN 0932-7622 (2002). http://www.kernchemie.uni-mainz.de/downloads/jb2001/a20.pdf

Schmidt, G., Snow J.E. Os isotopes in geochemical reference materials and mantle xenoliths from the Eifel volcanic field and the Vogelsberg. Inst. f. Kernchemie, Jahresbericht (2001), ISSN 0932-7622 (2002). http://www.kernchemie.uni-mainz.de/downloads/jb2001/a21.pdf

Schmidt, G., Snow J., Palme H. Highly siderophile elements and Os Isotopes in mantle xenoliths from the Eifel volcanic field and the Vogelsberg volcano (Germany) Eos Trans. AGU, 82 (47), Fall Meet. Suppl. (2001) http://adsabs.harvard.edu/abs/2001AGUFM.V22A1009S

Schmidt, G., Snow J., Palme H., Seck H.A., Witt-Eickschen G., Spettel B., Kratz K.-L., Hofmann A.W. Os-Isotopie, Platinmetalle, Re und Au in Eifel-Xenolithen. Abstract zum Eifel-Workshop, Institut für Geophysik, Universität Göttingen (2001)

Schmidt, G., Snow J.E. Os isotopes in xenoliths from the Eifel volcanic field: Proterozoic minimum age of separation of the subcontinental European lithospheric mantle from the convecting asthenosphere. Inst. f. Kernchemie, Jahresbericht (2000), ISSN 0932-7622 (2001), A12. http://www.kernchemie.uni-mainz.de/downloads/jb2000/a12_gschmidt.pdf

Schmidt, G., Spettel B., Palme H., Kratz K.-L. Determination of major and trace elements in mantle xenoliths from the Eifel volcanic field by instrumental neutron activation. Inst. f. Kernchemie, Jahresbericht (2000), ISSN 0932-7622 (2001), A13. http://www.kernchemie.uni-mainz.de/downloads/jb2000/a13_gschmidt.pdf

Schmidt, G., Snow J., Palme H., Witt-Eickschen G., Hofmann A.W., Kratz K.-L. Highly Siderophile Elements (PGE, Re and Au) and Os Isotopes in Xenoliths from the Eifel Volcanic Field and the Vogelsberg. Inst. f. Kernchemie, Jahresbericht (2000), ISSN 0932-7622 (2001), A14. http://www.kernchemie.uni-mainz.de/downloads/jb2000/a14_gschmidt.pdf

Snow J., Schmidt G. Metasomatic effects on Os isotopes in mantle xenoliths from the Eifel volcanic field. Eos Trans. American Geophysical Union, 81(48), Fall Meet. Suppl., Abstract V11C-12, 2000

Schmidt, G., Lorand J.-P., Palme H., Kratz K.-L. Non-Chondritic Ratios of Os, Re, Ir, Ru, Rh, Pd and Au in Orogenic Lherzolites from Lanzo (Italy) and Ronda (Spain); Inferences on HSE Systematics of the Terrestrial Mantle. Inst. f. Kernchemie, Jahresbericht (1999), ISSN 0932-7622 (2000), 22. http://www.kernchemie.uni-mainz.de/downloads/jb1999/a21.pdf

Schmidt, G., Ionov, D. A., Palme H., Kratz K.-L. Spinel Lherzolite Xenoliths from Mongolia; PGE, Re and Au Geochemistry. Inst. f. Kernchemie, Jahresbericht (1999), ISSN 0932-7622 (2000), 23. http://www.kernchemie.uni-mainz.de/downloads/jb1999/a22.pdf

Schmidt, G., Ionov D. A. Spinel Lherzolite and Garnet Lherzolitic Xenoliths from the Vitim Volcanic Field, Baikal Region, Siberia; Subchondritic Os/Ir Ratios. Inst. f. Kernchemie, Jahresbericht (1999), ISSN 0932-7622 (2000), 24. http://www.kernchemie.uni-mainz.de/downloads/jb1999/a23.pdf

Schmidt, G., Snow, J.E., Niu Y, Hékinian R. Extreme melt depletion and PGE fractionation at the Garrett Fracture Zone, East Pacific Rise. Inst. f. Kernchemie, Jahresbericht (1998), ISSN 0932-7622 (1999), 26.

Schmidt, G., Kratz K.-L., Palme H., Snow J. Constraints on Earth Accretion from Fractionation of Highly Siderophile Elements (HSE). 217th American Chemical Society National Meeting, Division of Nuclear Chemistry, Anaheim, CA, 147 (1999)

Schmidt, G., Snow J.E., Niu Y, Hékinian R. PGE Fractionation in Highly Depleted Oceanic Harzburgites, East Pacific Rise. Eos Trans. American Geophysical Union, Fall Meet. Suppl., 79 (1998).

Schmidt, G., Palme H. Fractionation of Highly Siderophile Elements (HSE) in Earth's Upper Continental Crust. Eos Trans. American Geophysical Union, Fall Meet. Suppl. (1998) 354.

Palme H., Borisov A., Holzheid A., Schmidt G. Origin and significance of highly siderophile elements in the upper mantle of the Earth. Mineralogical Magazine 62 A: 1127-1128 (1998). In 8th Annual V. M. Goldschmidt Conference, Toulouse, France, 1998. http://www.minersoc.org/pages/Archive-MM/Volume_62A/62a-2-1127.pdf

Snow J.E., Schmidt G., Rampone E., Hofmann A.W. Highly Siderophile Elements (HSE) and Os Isotopes from the Ligurian Peridotites, N. Italy. Eos Trans. American Geophysical Union, Fall Meet. Suppl. (1998) 372.

Schmidt, G., Palme H. The concentrations of highly siderophile elements in Earth's upper crust as inferred from the compositions of large terrestrial impact melt sheets. In Lunar Planet. Sci. Conf. XXIX (CD-ROM, 1273, Lunar and Planetary Institute, Houston 1998). http://www.lpi.usra.edu/meetings/LPSC98/pdf/1273.pdf

Schmidt, G., Palme H., Kratz K.-L. Fractionation of Highly Siderophile Elements in the Earth's Upper Continental Crust. Inst. f. Kernchemie, Jahresbericht (1997), ISSN 0932-7622 (1998), 15.

Schmidt, G., Snow J. Highly Siderophile Elements (HSE) in Harzburgitic Melting Residues from the Garett Transform. Inst. f. Kernchemie, Jahresbericht (1997), ISSN 0932-7622 (1998), 16.

Snow J., Schmidt G., Rampone E., Hofmann A.W. Highly Siderophile Elements (HSE) and Os Isotopes from the Ligurian Peridotite Massifs, Genova, Italy. Inst. f. Kernchemie, Jahresbericht (1997), ISSN 0932-7622 (1998) 17.

Schlösser D., Bissinger D., Heinrich E., Heidenreich S., Rollinger D., Schmidt G., Wolf B., Kratz K.-L. Neutronenaktivierungsanalyse - eine Methode zur Bestimmung von geogenen und anthropogenen Schwermetallbelastungen. Mainzer naturwissenschaftliches Archiv 35 (1997), 21-22. http://www.zfu.uni-mainz.de/Jahresberichte/Jahresbericht%201999.pdf

Schmidt G., Kratz K.-L., Palme H. Os, Re, Ir, Ru, Rh, Pd, Au in Borehole Samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine). In Lunar Planet. Sci. Conf. XXVIII, Abstract #1030, Lunar and Planetary Institute, Houston (CD-ROM), (1997). http://www.lpi.usra.edu/meetings/lpsc97/pdf/1030.pdf

Snow J.E., Schmidt G. Proterozoic melting of the Zabargad peridotite: Os isotopic evidence. European Union of Geosciences EUG 9 (1997) Abstract Supplement No 1, Terra Nova Volume 9, 80.

Schmidt G., Snow J.E. Platinum group elements (PGE) in abyssal peridotites from the oceanic upper mantle. In Seventh Annual V. M. Goldschmidt Conference, LPI Contribution No. 921, Lunar and Planetary Institute, Houston, (1997) 186. http://www.lpi.usra.edu/meetings/gold/pdf/2021.pdf

Schmidt G., Palme H. Abundances of Os, Ir, Ru, Rh, Pt and Pd in the Earth's crust. In EAG-Workshop 1997, The origin and fractionation of highly siderophile elements in the Earth's mantle, MPI Mainz, (1997) 71.

Snow J.E., Schmidt G. HSE in the oceanic mantle. In EAG-Workshop 1997, The origin and fractionation of highly siderophile elements in the Earth's mantle, MPI Mainz, (1997) 73

Snow J.E., Schmidt G. A combined INAA-NTIMS method for simultaneous determination of platinum group elements (PGE), Au and Re abundances and Os isotopes. Inst. f. Kernchemie, Jahresbericht (1996), ISSN 0932-7622 (1997), 11.

Schmidt G., Palme H., Kratz K.-L. Os, Re, Ir, Ru, Rh, Pd, Au in Borehole Samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine). Inst. f. Kernchemie, Jahresbericht (1996), ISSN 0932-7622 (1997), 32.

Schmidt G., Snow J.E. Platinum Group Elements (PGE) in Serpentinized Abyssal Peridotites from the Oceanic Upper Mantle. Inst. f. Kernchemie, Jahresbericht (1996), ISSN 0932-7622 (1997), 33.

Snow J.E., Schmidt G. Proterozoic Melting of the Zabargad Peridotite: Os Isotopic Evidence. Inst. f. Kernchemie, Jahresbericht (1996), ISSN 0932-7622 (1997), 34.

Schmidt G., Palme H., Kratz K.-L. Platinum group elements, Re and Au in mantle rocks. In Proc. 14th European TRIGA Conference, Mainz (1996) 5-6. https://inis.iaea.org/search/search.aspx?orig_q=%2239121963%22

Schmidt G., Palme H., Kratz K.-L. The use of Platinum Group Element signatures for impactor identification of impact craters. In Proc. 14th European TRIGA Conference, Mainz (1996) 6-7. https://inis.iaea.org/search/search.aspx?orig_q=%2239121963%22

Bissinger D., Heinrich E., Hirsch R., Schloesser D., Schmidt G., Wolf B., Kratz K.-L. Neutron activation analyses at the Mainz TRIGA reactor. In Proc. 14th European TRIGA Conference, Mainz (1996) Proceedings. https://inis.iaea.org/search/search.aspx?orig_q=RN:39121912

Heinrich E., Schmidt G., Kratz K.-L. Determination of anthropogeneous Platinum-Group-Elements (PGEs) in soil samples by docimasy/NAA. In 4th International Conference on Nuclear and Radiochemistry, St Malo, France, 8-13 September (1996) E-O7. https://books.google.de/books/about/Extended_Abstracts.html?id=sgS9OQAACAAJ&redir_esc=y

Heinrich E., Schmidt G., Kratz K.-L. Nachweis von Platinmetallen in Bodenproben. In 16. Seminar Aktivierungsanalyse, Hahn-Meitner-Institut Berlin, 2.-3. Mai. Konferenzband (1996) V6. http://kernenergi-wissen.de/Forschungsreaktoren/Ubersicht/Forschung_an_TRIGAS/forschung_ an_trigas.html

Schmidt G., Palme H., Kratz K.-L. Die Bestimmung von Os, Ir, Ru, Rh, Pd, Re und Au in Gesteinen der Erdkruste und des Erdmantels. In 16. Seminar Aktivierungsanalyse, Hahn-Meitner-Institut Berlin, 2.-3. Mai. Konferenzband (1996) P19.

Schmidt G., Palme H. The Late Veneer Hypothesis for the Origin of Highly Siderophile Elements in the Mantle of the Earth. In Six Annual V. M. Goldschmidt Conference, J. Conf. Abs. 1 (1996) 544, Heidelberg. http://www.the-conference.com/JConfAbs/1/544.html

Heinrich E., Schmidt G., Kratz K.-L. Verteilung der Platingruppenelementen in Böden. Inst. f. Kernchemie, Jahresbericht (1995), ISSN 0932-7622 (1996), 40.

Schmidt G., Palme H., Kratz K.-L. The Abundances of Os, Ir, Ru, Rh, Pd, Re and Au in the Mantle and the Earth`s Crust. Inst. f. Kernchemie, Jahresbericht (1995), ISSN 0932-7622 (1996), 18.

Schmidt G., Palme H., Kratz K.-L. The fractionation of Os, Re, Ir, Ru, Rh, Pd and Au in impact melts from European impact craters (Säksjärvi, Mien and Dellen) and the determination of the meteoritic components. In Lunar Planet. Sci. Conf. XXVI (1995) 1237-1238. http://www.lpi.usra.edu/meetings/programs/metsoc95wa

Heinrich E., Schmidt G., Kratz K.-L. Bestimmung von Platin, Palladium und Rhodium in Umweltproben mittels instrumenteller Neutronenaktivierungsanalyse. In Proc. Int. Symp. on Instrumentalized Analytical Chemistry and Computer Technology, InCom´95, Düsseldorf (1995)

Heinrich E., Schmidt G., Kratz K.-L. Determination of platinum, palladium and rhodium in the environment by instrumental neutron activation analysis. In Proc. 3rd Int. workshop on short time activation analysis, high rate g-spectroscopy and x-ray techniques, Wien (1995) http://www.zfu.uni-mainz.de/Jahresberichte/Jahresbericht%201995.pdf

Schmidt G., Palme H., Kratz K.-L. The fractionation of platinum-group-elements in impact melts from european impact craters. Annales Geophysicae, Supplement of Vol. 13, 1995; Geophysicae 13 (1995) C742.

Schmidt G., Palme H., Kratz K.-L. Abundances of highly siderophile elements (PGE, Re and Au) in upper mantle rocks. Berichte der Deutschen Mineral. Ges., Beih. z. Eur. J. Mineral. Vol. 7 (1995) 1, 211.

Schmidt G., Palme H., Kratz K.-L. Chemical exchange between the core and the convecting mantle of the Earth: evidence from highly siderophile elements (HSE). Meteoritics 30 (1995) 573. http://articles.adsabs.harvard.edu/full/1995Metic..30Q.573S

Schmidt G., Palme H., Kratz K.-L. The fractionation of highly siderophile elements (HSE) in impact melts and the determination of the meteoritic components. Meteoritics 30 (1995) 573-574. http://articles.adsabs.harvard.edu/full/seri/Metic/0030//0000574.000.html

Schmidt G., Palme H., Kratz K.-L. Extraterrestrial traces in impact melts from Skandinavian impact craters (Sääksjärvi, Mien and Dellen): The fractionation of Os, Re, Ir, Ru, Rh, Pd and Au and the determination of the meteoritic components. Inst. f. Kernchemie, Jahresbericht (1994), ISSN 0932-7622 (1995), 41.

Heinrich E., Schmidt G., Kratz K.-L. Nachweis von Platin, Palladium und Rhodium in Umweltproben. Inst. f. Kernchemie, Jahresbericht (1994), ISSN 0932-7622 (1995), 47.

Schmidt G., Palme H., Kratz K.-L. Abundances of highly siderophile elements (PGE, Re and Au) in the upper mantle: New results on peridotites from Zabargad (Red Sea). In Workshop on the formation of the Earth's core, 18-20. April, Max-Planck-Institut für Chemie, Mainz (1994), 48. http://www.worldcat.org/title/formation-of-the-earths-core-papers-originating-from-a-workshop-on-the-formation-of-the-earths-core-held-april-18-20-1995-in-mainz-germany/oclc/68633979

Schmidt G., Palme H., Kratz K.-L. Platinum Group Elements (PGE) in Upper Mantle Rocks from Zabargad Island, Red Sea, and their Implication for Evolutionary Earth Models. Inst. f. Kernchemie, Jahresbericht (1993), ISSN 0932-7622 (1994), 40.

Schmidt G., Wasson J. T. Masses of the impactor, the Australasian tektites, and size estimates of the main source crater. Meteoritics 28 (1993) 430-431. http://articles.adsabs.harvard.edu/full/1993Metic..28Q.430S

Schmidt G., Pernicka E. Trace-element analysis of metal nodules, magnetic and nonmagnetic fractions, and chondrules of the Qingzhen EH3 chondrite. Meteoritics 28 (1993) 430. http://articles.adsabs.harvard.edu/full/1993Metic..28R.430S

Schmidt G., Zhou L., Wasson J. T. Iridium in sediments containing large abundances of Australasian microtektites from DSDP hole 758B in the Eastern Indian Ocean and from DSDP hole 769A in the Sulu Sea. In Lunar Planet. Sci. XXIV, Lunar Planet. Inst., Houston (1993) 1251. http://www.lpi.usra.edu/meetings/lpsc1993/pdf/1627.pdf

Schmidt G., Pernicka E. The determination of platinum group elements (PGE) in target rocks and fall-back material of the Nördlinger Ries Impact crater (Germany). Meteoritics 26 (1991) 392. http://articles.adsabs.harvard.edu/full/1991LPICo.766..207S

Schmidt G., Pernicka E. The determination of platinum group elements (PGE) in target rocks and fall-back material of the Nördlinger Ries Impact crater (Germany). In Abstracts for the 54th Annual Meeting of the Meteoritical Society, Monterey (Kalifornien) (1991) 207. http://articles.adsabs.harvard.edu/full/1991LPICo.766..207S

Schmidt G., Pernicka E. Die Suche nach meteoritischen Signaturen in Gesteinen des Impaktkraters Nördlinger Ries, Jahresbericht, Max-Planck-Institut für Kernphysik, Heidelberg (1990) 177.

Schmidt G., Pernicka E. Pd, Os, Ir, Ru, Pt, Re und Au in Gesteinen des Impaktkraters Nördlinger Ries. Berichte der Deutschen Mineral. Ges., Beih. z. Eur. J. Mineral. Vol. 2, 1 (1990) 223

Schmidt G., Pernicka E. Die Bestimmung von refraktären siderophilen Elementen (Platinmetalle, Re und Au) in Gesteinen der Nördlinger Ries Forschungsbohrung 1973. Jahresbericht, Max-Planck-Institut für Kernphysik, Heidelberg (1989) 162.

Schmidt G., Chen Y., Pernicka E. Spurenelementuntersuchungen an verschiedenen Mineralphasen des Enstatit-Chondriten Qingzhen. Jahresbericht, Max-Planck-Institut für Kernphysik, Heidelberg (1988) 120-121.

 

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